2PFF

Structural Insights of Yeast Fatty Acid Synthase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4 Å
  • R-Value Free: 0.346 
  • R-Value Work: 0.319 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Insights of Yeast Fatty Acid Synthase

Xiong, Y.Lomakin, I.B.Steitz, T.A.

(2007) Cell 129: 319-332

  • DOI: 10.1016/j.cell.2007.03.013

  • PubMed Abstract: 
  • In yeast, the whole metabolic pathway for making 16- and 18-carbon fatty acids is carried out by fatty acid synthase, a 2.6 megadalton molecular-weight macromolecular assembly containing six copies of all eight catalytic centers. We have determined i ...

    In yeast, the whole metabolic pathway for making 16- and 18-carbon fatty acids is carried out by fatty acid synthase, a 2.6 megadalton molecular-weight macromolecular assembly containing six copies of all eight catalytic centers. We have determined its crystal structure, which illuminates how this enzyme is initially activated and then carries out multiple steps of synthesis in each of six sterically isolated reaction chambers. Six of the catalytic sites are in the wall of the assembly facing an acyl carrier protein (ACP) bound to the ketoacyl synthase domain. Two-dimensional diffusion of substrates to the catalytic sites may be achieved by the electrostatically negative ACP swinging to each of the six electrostatically positive catalytic sites. The phosphopantetheinyl transferase domain lies outside the shell of the assembly, inaccessible to ACP that lies inside, suggesting that the attachment of the pantetheine arm to ACP must occur before complete assembly of the complex.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520-8114, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fatty acid synthase subunit alpha
A, D, G
1688Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: FAS2
EC: 2.3.1.86
Find proteins for P19097 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P19097
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Fatty acid synthase subunit beta
B, E, H
2006Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: FAS1
EC: 2.3.1.86
Find proteins for P07149 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P07149
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Tail protein
C, F, I
65N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
UNK
Query on UNK
A, B, C, D, E, F, G, H, I
L-PEPTIDE LINKINGC4 H9 N O2

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4 Å
  • R-Value Free: 0.346 
  • R-Value Work: 0.319 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 231.343α = 90.00
b = 231.343β = 90.00
c = 754.288γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data collection
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-07-10
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance